کنفرانس مهندسی برق ایران

صفحه اصلی / بیست و نهمین کنفرانس مهندسی برق ایران

A High Gain, High IIP3, Perfect Input Matching, Programmable Gain LNA in CMOS Technology

نویسندگان :

Amirhossein Tajik¹ Seyedali Samareh Taherinasab² Samad Sheikhaei³

1- دانشگاه شهید باهنر کرمان 2- دانشگاه تهران 3- دانشگاه تهران

کلمات کلیدی :

Low noise amplifier (LNA), gain controllable, noise figure, feedback, CMOS, IIP3

چکیده :

This paper presents A CMOS Gain Controllable Low Noise Amplifire (LNA) in TSMC 180nm process. A gain control circuit is exploited and added in the first stage of a folded cascode LNA to achieve gain tuning. Resistor and capacitor feedback technique are introduced for improving IIP3 and input matching. Without gain controlling, located in the frequencies of interest (5.24 GHZ), the is 27.54 dB, and the NF is 1.97 dB, and S11 is -25.44 dB with a good IIP3 of +3.14 dBm at 1.8 v of supply.

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